<!DOCTYPE HTML>
<html lang="en-US">
<head>
	<meta charset="UTF-8">
	<title>重复径向渐变</title>
	<style type="text/css">
		*{
			margin: 0;
			padding: 0;
		}
		div {
			width: 400px;
			height: 300px;
			margin: 20px auto;
			background-image: -webkit-radial-linear-gradient(red,green 40px, orange 80px);
			background-image: repeating-radial-gradient(red,green 40px, orange 80px);
		}
	</style>
</head>
<body>
	<div></div>
</body>
</html>